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Review of maintenance requirements for Aerobic Treatment
Title: Review of maintenance requirements for Aerobic Treatment Units and Greywater Treatment Systems in WA
Abstract: Aerobic Treatment Units (ATU) and Greywater Treatment Systems (GTS) are electrically driven onsite wastewater treatment systems (OWTS) designed to treat wastewater to secondary effluent quality standards.
ATU are designed to treat wastewater – both blackwater and greywater – either wholly or partially, from all areas of the house by aerobic means. All ATU incorporate the following processes: primary sedimentation, biological treatment, secondary sedimentation, and, usually, disinfection.
GTS are designed to treat greywater only and typically consist of the following treatment processes: filtration or screening, biological treatment and disinfection.
Despite the usefulness of OWTS, they can present a risk to human health and the environment when they fail or are used inappropriately. This is due to the contaminants that are present and the nature of the wastewater they treat. Therefore, maintenance of the electrical, mechanical and chemical components of these OWTS is important for ensuring their consistent and reliable operation to the required standards.
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